Changing the fuel filter the car lasted 2 months with no fault thought it was fixed. Unfortunatly my problem came back but Ford can not find any faults with the car .- finally got it sorted though - traded it in and I'm picking my new car up on Friday not a Mondeo, shame as when the car is running right it's a great car. Very expensive error buying it:mad:

Any place with the right diag tools should be able to carry out test on your car, Nationwide may be OK to do it but get them to use Ford parts, Ford thinks my problem was coursed buy having a 3rd party fuel filter installed (Unibond) You could also try a Diesal specalist. Ford may have been a bit more expensive but it could have been my fault for getting a cheap service else were. Good luck.

Since Dixon ford ran a diag and changed my fuel filter and my break light switch problem the car has been OK started blowing a bit of black smoke but as not cut out on me since Cost me just under a ton. A friend of mine who's problem were similer but with starting problem's took his to a Deisal specalist Cost him £41 diag and fix of one injector which had a lose nut on it.

After fuel filter was changed the car ran great for one day till I had the flashing Glowpug light again this time the course was the break light switch. Been fine for the past 2 weeks a friend of mine had a simler problem but he also had starting problems he took it to a Diesal specalist cost of £41 pounds for a full diag and fix - one of his injectors bolts were loose they tightened it up he say it's running excelent now

2nd diag pointer to fual filter the filter was a therd party one that was fitted by a local garage, I was told that it contained a lot of water they tested my fual and it was slightly contaminated but not enough to sugest that the pump had gone yet... if this does not fix it next step is to replace the fual pump at £800 fitted not cheap. might just trade the thing in. Need to test on a long run.

Bit the bullet and decided to get a secound opinuion on Saturday from a FORD dealer. £88 for a diag said it would take all day - didn't only took a few hours - only fault they found was the ECU need upgrading, I was told this would cause this type of problem and I should have a fully working car. Monday morning going to work whilst over taking same problem came back, just glad ther was a layby on the right hand side of the road , phoned ford who have said they will need to run a FULL diag and a 10 point check this time and it would take ALL day. (so I'm going to ask what did I paid for on Saturday thought that was for a full diag.)

Hi all I have been following your post with interest due to a simaler problem I am having, I have an 03 TDCI and every couple of days I get the flashing glow plug light then loss of power till the engine cuts out. Once the car as stoped I can restart fine and the car drive fine for another couple of days. I have also notice my fuel comp has dropped on the same journy from 50mpg to 47.7 mpg, I have had a friend of mine run dianostics which came back with 2 faults the break light switch which was a perm fault and I had this replaced and a fuel pump fault which I'm having to save up for. Hopefully replacing the fuel pump will resolve this problem I'll also ask for the fuel system to be flushed out just in case after reading some of the probs above. Ill post back and let you know how I get on.